520039720

素因数分解:

$2^3\times 5^1\times {\mathrm{13000993}}^1$

素因数の和:13001004

約数の個数: 16

約数和(自身を含む): 1170089460

約数和(自身を除く): 650049740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 13000993, 26001986, 52003972, 65004965, 104007944, 130009930, 260019860, 520039720]

約数ペア:

[(1, 520039720), (2, 260019860), (4, 130009930), (5, 104007944), (8, 65004965), (10, 52003972), (20, 26001986), (40, 13000993)]